/*
*    Qizx/open 3.0 beta
*
* This code is the open-source version of Qizx.
* Copyright (C) 2004-2009 Axyana Software -- All rights reserved.
*
* The contents of this file are subject to the Mozilla Public License 
*  Version 1.1 (the "License"); you may not use this file except in 
*  compliance with the License. You may obtain a copy of the License at
*  http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
*  WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
*  for the specific language governing rights and limitations under the
*  License.
*
* The Initial Developer of the Original Code is Xavier Franc - Axyana Software.
*
*/
using System;
namespace System.Qizx.Api
{
	
	/// <summary> Type of an Item sequence.</summary>
	public struct SequenceState{
		/// <summary> Occurrence indicator corresponding with one optional item.</summary>
		public const int OCC_ZERO_OR_ONE = 0;
		/// <summary> Occurrence indicator corresponding with one required item.</summary>
		public const int OCC_EXACTLY_ONE = 1;
		/// <summary> Occurrence indicator corresponding with '*', any number of items.</summary>
		public const int OCC_ZERO_OR_MORE = 2;
		/// <summary> Occurrence indicator corresponding with '+', at least one item.</summary>
		public const int OCC_ONE_OR_MORE = 3;
	}

	public interface ISequenceType
	{
        /// <summary>
        /// Returns the base Item Type of the sequence type.
        /// </summary>
        /// <value>The type of the item.</value>
        /// <returns> the base Item Type of the Sequence type.
        /// </returns>
		ItemType ItemType
		{
			get;
			
		}
        /// <summary>
        /// Returns the occurrence indicator associated with this type
        /// (OCC_ZERO_OR_ONE, OCC_EXACTLY_ONE, OCC_ONE_OR_MORE, OCC_ZERO_OR_MORE).
        /// </summary>
        /// <value>The occurrence.</value>
        /// <returns> an int representing the occurrence indicator value
        /// </returns>
		int Occurrence
		{
			get;
			
		}
	}
}